168328272 has 40 divisors (see below), whose sum is σ = 496970176. Its totient is φ = 48093696.

The previous prime is 168328261. The next prime is 168328289. The reversal of 168328272 is 272823861.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 168328272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250153 + ... + 250824.

Almost surely, 2^168328272 is an apocalyptic number.

168328272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168328272 is an abundant number, since it is smaller than the sum of its proper divisors (328641904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168328272 is a wasteful number, since it uses less digits than its factorization.

168328272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500995 (or 500989 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 168328272 is about 12974.1385841219. The cubic root of 168328272 is about 552.1439972995.

The spelling of 168328272 in words is "one hundred sixty-eight million, three hundred twenty-eight thousand, two hundred seventy-two".